Floor-scraper.



P. 'J. VO'NDRAGEK.

FLOOR SGRABER. APPLICATION IIL'BD SEPT. 11,1911.

Patented May 28, 1912.

[NVE/VTU/E MM,

FRANK J. VONDRACEK, CEDAR RAPIDS, IOWA.

FLOOR-SCRAPER.

Specification of Letters Patent.

Patented May 28,1912.

Application filed September 11 1911. SerialNo. 648,677.

To all whom it may 0mm.- 1 7 Be it known that I, FRANK J. VONDRACEK,

citizen of the United States, and residing at Cedar Rapids, in the'county of Linn and State of Iowa,have invented new and use-v fulImprovements in Floor-Scrapers, of

which the following is a specification.

This invention relates to improvements in floor scrapers.

An object of the invention is the provision of a simplified means forretaining a scraper blade in an adjusted position upon a suitable handlemember and which elements may be easily and inexpensively manufactured.V

A further object is the provision of a securing member for the handleand blade by which the relative positions of the members may be easilychanged without the necessity of completely disassembling the device.

A still further object is to provide an ad justment in which the bladeis slidable upon a handle tang and is capable of being securelyositioned thereon at various points.

With these general objects in view and others that will appear as thenature of the invention is better understood, the same consists in thenovel combination and arrangement of parts hereinafter fully described,illustrated in the accompanying drawings, and pointed outin the appendedclaims.

In the drawings forming a part of this application and in which likenumerals of reference designate corresponding parts throughout theseveral views: Figure 1 is a perspective view of the complete inventionassembled. Fig. 2 is a partial longitudinal central View thereof. Fig. 3is a perspective view of the modified form of the device, and, Fig. 4:is a detail sectional view of the adjusting elements of the form shownin Figs 1 and 2.

Referring more in detail to the drawings, the handle 5 is provided withthe tang 6 secured therein in the ordinary manner and having its outerfree end longitudinally bent as at 7 and bifurcated adjacent thislateral point to form the two arms 8, 8. A blade member 9 is mountedupon the upper side of the tang and overlying the arms 8, 8, and isprovided with a substantially central perforation 10 and with a row ofsmaller perforations 11 arranged parallel to each other and uponopposite sides of the central perforation and also parallel to the sideedges of the blade A bolt member 12 positioned A through the bladeperforation 10 is adapted to project between the arms 8- with a channelwasher member 13adapted to span said arms and having the head 14 of thebolt member seated thereon.

The upper faces of the arms 8 are provided at opposite points withupwardly-projecting lugs 15 adapted for reception within any twoopposite perforations 11 of the scraper plate. For retaining the washer'13 within'the perforations 11-, there is provided a winged nut 16 while7 an intermediate frusto-conical washer 17 receives the bolt and seatsupon the upper'- face of the scraper plate 9, while the said washer mayalsobe provided with alining perforations 18 on its lower face ifdesired for receiving the said lugs.

In the modified form of the invention shown in Fig. 3, the scraper plate25 is provided with a perforation for receiving the securing bolt 19which is retained in position by the winged nut 20 and washer 21, thesame being mounted upon bifurcated arms of the handle tang 27 in amanner identical to that set forth in the preferred construct-ionherein. In this form of the invention, a removable hand bar 23 isprovided which has' a strap member 22 embracing and encircling the samewith parallel projecting free ends 21 for receiving the bolt 19therebetween, the said strap ends being impinged against the scraperblade 25 by the winged nut and washer upon the said bolt, it beingunderstood that the head of the bolt engages a channel washer platebeneath the blade and spanning the lower faces of the tang bifurcationsin an identical manner to that shown in the other views -of the drawingsand the said members 21 may be slotted in any desired manner but arehere shown having Vshaped excisions 26 for the reception of the bolt. Itwill thus be noted that the cylindrical wooden member 23 which may bereadily attached to and disengaged from the scraper is adapted to beemployed as an additional handle in the operation of scraping to begrasped by both hands of the operator.

In the preferred embodiment of the invention, it will be noted that byslightly loosening the winged nut 16, the retaining lugs 15 may beveasily disengaged fromthe receiving perforations and sockets and thusthe plate 9 may be easily moved to a different position upon the tangarms 8 and without the necessity of completely removing the tang fromdisengagement with the blades.

Vhile the forms of the invention herein shown and described are what arebelieved to be preferable embodiments thereof, it is nevertheless to beunderstood that minor changes may be made in form, proportion and sizeof the various parts without departing from the spirit and scope of theinvention as set forth in the appended claims. Having thus fullydescribed my invention and in what manner the same is designed for use,what I claim as new and desire to secure by Letters Patent of the UnitedStates is:

l. A floor scraper comprising a tang member having a bent body-portion,terminal integral arms positioned thereon, a perpendicularly positionedcylindrical lug upon the upper face of each of said arms, a scraperplate provided with a large perforation and a row of smallerperforations upon opposite sides thereof arranged in parallelism witheach other and the edges Copies of this patent may be obtained for fivecents each, by addressing Washington, D. 0.

of said plate, a bolt adapted for reception within said largerperforation and between said arms, a head upon said bolt, a channelwasher upon said bolt between said arms and head and embracing said armsand containing the lower faces thereof, a winged nut upon said bolt, anda washer between the same and said plate.

2- A floor scraper comprising a tang member, projecting lugs carried bysaid member, a scraper plate provided with a plurality of perforationstherein and adapted to engage said lugs, a securing means engaging saidtang and plate and adapted for retaining said lugs within saidperforations, an auxiliary handle, a strap member embracing the same,bifurcated end members upon said strap member and adapted for engagementwith the securing means.

In testimony whereof I affix my signature in presence of two witnesses.

FRANK J. VONDRACEK,

IVitnesses:

JoHN- N. ELY, M. L. WOLRAB.

the Commissioner of Patents,

